87145240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:389

約数の個数: 128

約数和(自身を含む): 244944000

約数和(自身を除く): 157798760

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 89, 91, 104, 130, 140, 178, 182, 260, 269, 280, 356, 364, 445, 455, 520, 538, 623, 712, 728, 890, 910, 1076, 1157, 1246, 1345, 1780, 1820, 1883, 2152, 2314, 2492, 2690, 3115, 3497, 3560, 3640, 3766, 4628, 4984, 5380, 5785, 6230, 6994, 7532, 8099, 9256, 9415, 10760, 11570, 12460, 13988, 15064, 16198, 17485, 18830, 23140, 23941, 24479, 24920, 27976, 32396, 34970, 37660, 40495, 46280, 47882, 48958, 64792, 69940, 75320, 80990, 95764, 97916, 119705, 122395, 139880, 161980, 167587, 191528, 195832, 239410, 244790, 311233, 323960, 335174, 478820, 489580, 622466, 670348, 837935, 957640, 979160, 1244932, 1340696, 1556165, 1675870, 2178631, 2489864, 3112330, 3351740, 4357262, 6224660, 6703480, 8714524, 10893155, 12449320, 17429048, 21786310, 43572620, 87145240]

約数ペア:

[(1, 87145240), (2, 43572620), (4, 21786310), (5, 17429048), (7, 12449320), (8, 10893155), (10, 8714524), (13, 6703480), (14, 6224660), (20, 4357262), (26, 3351740), (28, 3112330), (35, 2489864), (40, 2178631), (52, 1675870), (56, 1556165), (65, 1340696), (70, 1244932), (89, 979160), (91, 957640), (104, 837935), (130, 670348), (140, 622466), (178, 489580), (182, 478820), (260, 335174), (269, 323960), (280, 311233), (356, 244790), (364, 239410), (445, 195832), (455, 191528), (520, 167587), (538, 161980), (623, 139880), (712, 122395), (728, 119705), (890, 97916), (910, 95764), (1076, 80990), (1157, 75320), (1246, 69940), (1345, 64792), (1780, 48958), (1820, 47882), (1883, 46280), (2152, 40495), (2314, 37660), (2492, 34970), (2690, 32396), (3115, 27976), (3497, 24920), (3560, 24479), (3640, 23941), (3766, 23140), (4628, 18830), (4984, 17485), (5380, 16198), (5785, 15064), (6230, 13988), (6994, 12460), (7532, 11570), (8099, 10760), (9256, 9415)]